Summary. NA1 Air Circuit Breaker

Transcription

1 INGTERTEK NA1 Air NA1 Air Summary Installation and usage Dimensions and connection Secondary circuit wiring and maintenance Regular malfunction and solutions Intelligent controller Choosing manual Accessories, Recommendation for user s connecting bus-bar Power loss A S curve Derating usage Coordination recommendations Selectivity protection Order form frame sizes, 1 family The new range of air circuit breakers includes one family: NA1 series in three frame sizes, one with rated current from 0A to 000A, another 000A to 00A and the other 00A to A. Summary NA A to 000A NA1-300, A to 00A NA1-00A to A.1.

2 NA1 Air NA1 Air 11 1 Drawout type Fixed type 3 Intelligent controller 4 Operating mechanism 5 Auxiliary contact Locking-device 7 Arcing chamber 8 Secondary connecting part 9 Wire-cable mechanical interlock Connecting-rod type mechanical interlock 11 Shunt release 1 Closing electromagnet 1 13 Under-voltage release 14 Motor-driven energy-storage mechanism Rotary handle 3 1 Fixed plate

3 NA1 Air Fixed type breaker/switch-disconnector 1. Essentials of NA1 1.1 APPLICATION SCOPE NA1 series air circuit breaker is suitable for the circuit of AC 50Hz/Hz with rated service voltage 0V, 90V and rated service current up to A. It is mainly used to distribute electric energy and protect circuits and power-supply equipment from over-load, under-voltage, short-circuit and single-phase earthing. With intelligentized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure. The breaker is applicable for power stations, factories, mines (for 90V) and modern high-buildings, especially for the distribution system of intelligent building. 1. Standard: IEC/EN Certifications: CB, PCT, RCC, KEMA, SEMKO. Type Designation.1 Type Designation N A 1- Fixed plate for the fixed type breaker / Number of poles Frame size rated current Design number (enterprise) Air circuit breaker Enterprise Code. Environment conditions for operation Environmental temperature Temperature condition: -5 ~+ ; the average value within h shall not exceed +35 (Special situation excluded);.3 Elevation Altitude of installation place shall not exceed 000m. Atmosphere condition Relative humidity at + shall not exceed 50%. Higher humidity is permissible at lower temperature condition. When the highest monthly average relative humidity is 90% in the humiddest month, the lowest monthly average temperature of this month is +5. And consider the influence of dew on product surface due to temperature changes. Pollution grade: grade. The breaker should be installed according to the requirements on the instruction manual. The vertical inclination degree shall not exceed 5..4 Note: Without the intelligent controller,the breaker functions as a switch-disconnector. Fault-breaking indicator reset button Enclosure Waking button Energy storage & release indicator Breaking button Breaking/making indicator Name plate Structure for in and out Rotary handle Rotate out Rotate in 3. Structure Drawout type breaker and Fixed type breaker Drawout type breaker/switch-disconnector Under-voltage release page 5 Shunt release page 5 + Drawer seat = Body The breaker is composed of body and drawer base. Inserting the body into the drawer base,make it into drawout-type breaker..4. Closing electromagnet page Auxiliary contact page 7 Motor-driven energy storage mechanism page Locking device page 7 Intelligent controller page 19.5.

4 NA1 Air 4. Installation and usage 4.1 Installation Unload the breaker from the soleplate of package. If it is drawout type, firstly pull out the handle under the drawer-base of breaker, and plug it into the hole on central part of plastic cover under the drawer-base crossbeam, anticlockwise turns the handle, body will slowly slide along the outside of drawer-base. When the guide rod points to separated position and handle can't be rotated any longer, pull out the handle and firmly grasp the aluminum handle on drawer-base, pull out the breaker body and remove it form the base, then move the base from the soleplate and clean up the dirty things inside the drawer-base. Possible positions Mounting with vertical brackets 4.1. Check the insulation resistance with a 500V megger, resistance should not be less than 0M when ambient temperature is 0 5 and relative humidity is 50%~70%. Otherwise dry it Power supply NA1 devices can be supplied either from the top or from the bottom without reduction in performance, in order to facilitate connection when installed in a switchboard. Mounting on rails Partitions Sufficient openings must be provided in partitions to ensure good air circulation around the circuit breaker;any partition between upstream and downstream connections of the device must be made of nonmagnetic material. For high-currents, of 500 A and upwards, the metal supports or barriers in the immediate vicinity of a conductor must be made of non-magnetic material A;Metal barriers through which a conductorbusbars passes must not form a magnetic loop. The mechanical connection must be exclude the possibility of formation of a magnetic loop around a conductor non magnetic material A A:non magnetic material 4.1. Busbar connections The busbars should be suitably adjusted to ensure the connection points are positioned on the terminals before the bolts are inserted B The connections are held by the supporter which is fixed to the framework of the switchboard, in this way the circuit breaker terminals do not have to support its weight C. (This support should be placed close to the terminals) Put the breaker (fixed-type) or drawer-base (drawout-type) into the installation-bracket, and make it fixed, directly connect the cable wire of main circuit to the bus wire of fixed-type circuit breaker. Alternatively put breaker body onto the slideway of drawerbase. Plug the handle into installation hole, clockwise turns it until the under-part of drawer-base points at the connection position and click sound is heard. It indicates that breaker body has been connected to its place, then connect the cable of main circuit to drawer-base.mounting the circuit-breaker It is important to distribute the weight of the device uniformily over a rigid mounting surface such as rails or a base plate. This mounting plane should be perfectly flat (tolerance on support flatness: mm).this eliminates any risk of deformation which could interfere with correct operation of the circuit breaker. NA1 devices can also be mounted on a vertical plane using the special brackets. B C B A...7.

5 4.1.7 Main circuit adopts cable connection Users should not apply too strong mechanical strength on the terminals of Air. Extend the bus-bar of circuit breaker with connecting bus-bar, position the wiring piece of cable before inserting bolts; the cable should be fixed on the frame of distributing cabinet firmly. Connected position Test position Disconnected position Drawout position Clamping Correct clamping of busbars depends on the tightening torques used for the nuts and bolts,etc. Over-tightening may have the same consequences as under-tightening. For connecting busbars to the circuit breaker, the tightening torques to be used are shown in the table below.these values are for use with copper busbars and steel nuts and bolts, class 8.8. Examples breaker terminal busbar 3 bolt 4 washer 5 nut 1.Both main circuit and control circuit are connected..normal application conditions 5. Dimensions and connection 45(Disconnected position) The main circuit is disconnected, and the control circuit is connected..test application conditions. a 11 3 a 9 4( 4-pole) 353(3 -pole) Neither the main circuit nor the control circuit is connected ( ) 4-pole 55 5(3 ) -pole Main body is out of the drawer seat NA1-000 Drawout-type (3 -pole) Right &outer side of breaker 470(4-pole) Preferred tightening torque for NA1's tightening components Type of screw Application M4 Screws for secondary terminals M Installing bolts of Air M1 Connection terminals Preferred tightening torque 11Nm 45Nm 50Nm Right & outer side of breaker 17.5 Installation panel 344 Opening hole on panel 37.5 N-pole 95 8 In A 800~ Horizontal amm N-pole Vertical.8..9.

6 a a NA1 Air NA1-000 Fixed-type NA1-300 Fixed type Zero arcing covering: ferreous material Min18 a 413( 4-pole) 318(3 -pole) 9 In A 800~ 000 amm 0 Zero arcing covering: ferreous material Min18 a 493( 4-pole) 378(3 -pole) 35 In A amm 000~ N-pole N-pole ( 3-pole) 435( 4-pole) Horizontal (3 -pole) 5( 4-pole) Horizontal (4-pole) 435(4-pole) 0 Installation hole on Right &outer side of breaker Installation hole on right side of breaker Installation panel Opening hole on panel 1 17 N-pole Vertical 95 0(3 -pole) 5( 4-pole) 0 Installation hole on Right &outer side of breaker Installation hole on right side of breaker Opening hole on panel Installation panel 1 N-pole Vertical NA1-300 Drawerout-type NA1-00 Drawerout-type(3-pole) 45(Disconnected position) 45(Disconnected position) 58 a a 58( 4-pole) 413(3 -pole) In A 000~ A(mm) (3 -pole) 550( 4-pole) N-pole Horizontal (4-pole) 35(3 -pole ) Right &outer side of breaker Right&outer side of breaker.5 4 Installation panel Opening hole on panel N-pole Vertical Right & outer side of breaker Opening hole on panel Right&outer side of breaker Installation panel

7 motor driven break motor driven close NA1 Air NA1- (In 00A 5000A) Drawer type Secondary circuit wiring and maintenance 45(Disconnected position) 98(4 -pole) Main circuit Over-current release Emergent disconnection auxiliary switch 813( 3-pole) Failure Close Energy storage Open ( 3-pole) 950(4 -pole) FU 818(4 ) -pole 3-pole ( ) Right & outer side of breaker Installation panel N-pole) Processing unit Intelligent Controller Power FU Right &outer side of breaker Opening hole on panel ~ _ 1V ~ _ 0V ~380V Intelligent release power("1"connect positive pole,and""connect negative pole for direct current) NA1-(In A) Drawerout-type(3-pole) SB1 Shunt button SB Under-voltage button SB3 Making button SA Travel switch Q Under-voltage release or under-voltage time-delay release F Shunt release X Closing electromagnet M Energy-storage motor XT Connection terminal 45(Disconnected position) Note: If control voltage of Q, F, X is different from each other, they can be connected to different power. If model ST intelligent release is DC, it must pass through U1 and U before directly connected to terminal 1 or.circuit explanation for signal output a.broken-line parts shall be provided by customers. b.terminals # ~7# can output NC (normal close) contact if that is required by users. c.terminal 35# can be directly connected to power (automatic pre-storing energy), alternatively connect power after connecting NO button (manual-controlled pre-storing energy). In order to avoid the damage to shunt release and closing electromagnet, one group of NO (shunt release) or NC (closing electromagnet) contact should be separately connected to the control circuit. Wiring diagram of communication-type intelligent controller Right & outer side of breaker.5 Installation panel Right & outer side of breaker Opening hole on panel

8 L1 N PE 1 Device Red To T03 busbar Profibus-DP ST-DP Special connecting wire Modbus-RTV Green to the incoming-line side PE Un U1 U U3 Transformer connected Q F X ST Power Supply Modular IV L N L N PE DOV DOVCOM D11D1D13 DO1 DO3 ST QF: Circuit breaker NA1- FU: Fuse RT14-0/A SB: Button LA18- Each one for red and green YEHL: Signal indicator AD11-5~V Yellow GNHL: Signal indicator AD11-5~V Green RDHL: Signal indicator AD11-5~V Red Number inside the broken-line circle, is the terminal number on terminal block of NA1 body (Na1 Inner components) Q: Under-voltage coil~0v F: Shunt coil~v X: Closing electromagnetic~v M: Energy-storage motor~v SA: Motor limit switch M Dual receiving-circuit auto-switching operation circuit Energystorage Open Close main circuit energystoragstorage energy- Undervoltage Shunt Closing Intelligent controller with auxiliary functions release release electromagnet indication motor auxiliary switch 1#, #: Auxiliary power input 1#: Overload pre-alarm signal output 13#: M is wireless, H is open signal 14#: M is short-circuit tripping signal, H is closing signal #: M indicates long time-delay tripping signal, H is wireless 1#: Earthing tripping or alarm signal output or leakage alarm signal 17#: Unloading output of No1 signal 18#: Unloading output of No. signal 19#: output common line of contacts 0#: Self-diagnose alarm signal output 1#: Fault tripping signal output #, 3#, #: A,B,C Three-phase power input terminal ST-DP: DP Transformer device L1,L,L3 1QF QF L1,L,L3 39 Manual Stop Auto 34 SA IYE Single receiving-circuit operation circuit L1,L,L3 L1 FU1 1 7 QF Q 8 L3 FU N L11,L1,L13 1TA1 1TA 1TA3 TA1 L11,L1,L13 TA TA3 SA M processing unit IGN IRD SB F 01 1QF QF QF L11,L1,L13 TA1 TA TA3 3 SB 7 31 X 34 SA SA M 4 1 Processing unit YE GN 47 RD 135 1QF, QF: Circuit breaker NA1-1FU: Fuse RT14-0/A 1SB: Button LA18- Each one for red and green 1SA: Change-over switch LW1-1/ KT: Time-delay relay JS14A~V 1YEHL: Signal indicator AD11-5~V Yellow 1GNHL: Signal indicator AD11-5~V Green 1RDHL: Signal indicator AD11-5~V Red Number inside the broken-line circle, is the terminal number on terminal block of NA1 body (NA1 Inner components) Q: Under-voltage coil~0v F: Shunt coil~v X: Closing electromagnet~v M: Energy-storage motor~v SA: Motor limit switch.14...

9 5.1 Wiring the secondary circuit according to electric principle diagram. Note:Bolts, nuts, gaskets shouldn't be left inside the drawer seat to avoid being blocked. 5. Operation Check the rated voltage of the following components whether conforms to the power voltage. Such as under voltage release, shunt release, closing electromagnet, motor-driven mechanism and intelligent controller 5.3 Maintenance Check the technical parameters in time or add some lubricating oil.,etc.this breaker structure is arranged vertically and modularized composition with each functioncell separated,which make the maintenance easy. It has compact structure, reliable operation and strong free maintenance capability.please check the technical parameters on the nameplate in accordance with the requirements of order before installation Secondary connecting part Main body Arcing chamber. Regular malfunction and solutions Fault description Tripping of circuit breaker Reasons analysis Over load tripping (IL indicator flashing) Maintenance method 1. Check the breaking current value and operation time of intelligent release.. Analyze the load and electric network, exclude the overload if it happens. 3. Matchtheactualoperatingcurrentwithlongtime-delay currentsettingvalue. 4. Press the reset button to reclose the breaker 1. Check the breaking current value and operation time of intelligent release. Short circuit tripping. Exclude the short circuit fault if it happens ( Is or Ii indicator flashing) 3. Check the setting value of intelligent release 4. Check the normal state of breaker 5. Press the reset button to reclose the breaker Earthing fault tripping (IG indicator flashing) 1. Check the breaking current value and acting time of intelligent release.. Exclude the earthing fault if that happens. 3. Match the fault current setting value with the actual protection. 4. Press the reset button to reclose the breaker. Drawer seat Under-voltage release fault: 1. Rated working voltage is less than 70%Ue. Fault of control unit 1.Check the power is on or not.check the power voltage of under-voltage release, it shouldn't be less than 85%Ue. 3.Replace the control unit of under-voltage release Handle Slideway Mechanical interlock acting Check the working state of two circuit breakers fixed with mechanical interlock Intelligent release don't reset (panel is raised) Press the reset button to reclose the breaker Secondary circuit of drawerouttype breaker isn't connected ("click" sound will be Make the breaker to "making" position heard) Making the secondary circuit power, the motor-driven mechanism can store energy automatically until hearing the click and energy stored indicating on the panel. Otherwise press the storage handle for times until hearing the click and the indicator display energy stored And the closing operation can be realized either by closing electromagnet or manual button. Manual energy-storage The breaker can't be closed Breaker hasn't stored energy Mechanical interlock acting leads to locking of breaker Check the secondary circuit: 1. Power voltage of motor shouldn't less than 85%Ue.. Check the storage mechanism, replace it if necessary. Check the working state of two circuit breakers fixed with mechanical interlock Tripping after closing the circuit breaker (Fault indicator flashing) Closing electromagnet: 1.Rated control voltage is less than 85%Us;.Closing electromagnet is damaged Trippingimmediately: 1.Shortcircuitcurrentisclosed.Delaytrippingbecauseof transientcurrentishighwhen closing; 3.Overloadcurrentisclosed 1. Power voltage of closing electromagnet shouldn't less than 85%Us.. Replace the electromagnet. 1. Check the breaking current value and operation time of intelligent release;. Exclude the short circuit fault if it happens; 3. Exclude overload fault 4. Check the normal state of breaker 5. Modify the current setting value of intelligent release. Press the reset button to reclose the breaker Shake with the manual energy-storage handle up and down about six times to "click"

10 Fault description Circuit breaker can't be opened Circuit breaker can't store energy Handle of drawerouttype circuit breaker can't be drawn in or out Drawerout-type breaker can't be drawn out atthe "opening" position Drawerout-type breaker can't reach the "making" position No display on intelligent release panel Fault indicator still flashing after pressing the clear button Reasons analysis The breaker can't be opened manually 1. There is fault with mechanical operating mechanism The breaker can't be opened by motor remotely 1. There is fault with mechanical operating mechanism. Power voltage of shunt release is less than 70%Us; 3. Shunt release is damaged Manual storage can't be realized Maintenance method 1. Check the mechanism, if there is fault happened. 1. Check the mechanism, if there is fault happened.. Check the Power voltage of shunt release is less than 70%Us or not 3. Replace shunt release Mechanical fault with the energy-storage device Motor storage can't be realized 1.Power voltage of motor 1. Power voltage of motor energy-stored device shouldn't less energy-stored device is less than 85%Us; than 85%Us.There is mechanical fault. Mechanical fault with the energy-storage device with energy-storage device 1. There is padlock at the "opening" position. Slideway or breaker body isn't pulled into its position 1.Handle isn't pulled out.breaker is not totally at the "opening" position 1.Take away the padlock.pull the slideway or breaker body into its position 1.Pull out the handle.keep the circuit breaker totally at opening position 1. Something drop into the drawer base, and lock the mechanism or mechanism 1. Check and clean the drawer base, or contact with manufacturer fault happens.. Match the body with relevant drawer base. Breaker body not match with the frame-size rated current of drawer base 1. Release isn't connected with power.there is fault with release Closing electromagnet: 1. Rated control voltage is less than 85%Us;. Electromagnet is damaged Fault happened with intelligent release 1.Check the power is connected or not.cut off the power, then connect again. Otherwise contact with manufacturer 1. Check the electromagnet power voltage shouldn't be less than 85%Us.. Replace the closing electromagnet. Cut off the power, then connect again. Otherwise contact with manufacturer 7. Intelligent controller Intelligent controller is the core part of circuit breaker, it is classified into two types: standard and communication. Protection function Standard type Communication type Inverse-time protection for overload long-delay Inverse-time protection or definite time-delay protection for short-circuit short-delay Instantaneous short-circuit protection Protection of neutral line or earthing faults Over-voltage protection Under-voltage protection Over-frequency protection Under-frequency protection Protection of unbalanced voltage Protection of phase sequence Measuring function Measure of current Measure of voltage Measure of frequency Measure of power factor Measure of power Detection of phase sequence Measure of unbalanced rate of voltage Measure of electric energy Maintenance function Test function Inspecting and memorizing faults function Self-diagnosis function Equivalent of contactor Recording historical parameter of power network Others functions Monitoring load function MCR ON/OFF function Output of signal touch points function Zone selectivity interlocking (ZSI) function Communication function Note: means basic function, means optional function

11 7.1 Standard type (model M) Model M Basic functions: a.over-load long inverse time-delay protection b.short inverse time-delay or definite time-delay protection c.instantaneous protection d.earthing fault protection e.query function f.parameter setting function g.test function 7.1. Selective function: a.load monitor function b.making current release (MCR) c.signal alarm function details are in user manual 7. Communication type(model H) communication has one more function of communication than the standard Basic functions: a.over-load long inverse time-delay protection b.short inverse time-delay or definite time-delay protection c.instantaneous protection d.earthing fault protection e.ampere-meter function f.self-check g.setting h.test i.monitoring with load j.display 7.. selective functions a.voltage b.frequency c.power factor d.active power display Refer to intelligent controller user manual for details. Model H 1 Reset button: After the breaker trip by fault, the reset button should be pressed in order to make it close again. Otherwise, it won't be realized. Display screen: It shows time and current value. 3 LED indicator: display all states and types. 4 Select key: Under normal operation state, shows the parameters of current, time or voltage of every phase. 5 Clean key: Press this key to make breaker normally operate after release's setting, test, fault or data check. Set key: Check and set the current and time for protection characteristic. Press this key to circularly display each state of breaker. 7 Trip or non-trip key: Used for release test function, when tested, the breaker is needed to be broken or not. 8 Fault check key: Press this key to display the last fault state and its fault current and time. 9 Save key: Setting the current and time. A/KA/S indicator: Indicate the unit of displayed value. 11 G indicator: Indicate the displayed current is earthing fault current. 1 L1, L, L3 indicator: L1, L, L3 is the phase of displayed current, if MAX simultaneously shining with one of L1,L,L3, it shows the displayed phase's current is maximum among three phases. 13 Test indicator: it indicates the breaker is at the test state. 14 Trip indicator: Indicate the release sending out tripping signal. Indicator flashing shows the earthing-fault process state, if shining with trip light, shows it has tripped. 1 Indicator flashing shows the fault process state of instantaneous short-circuit, if shining with trip light, shows it has tripped. 17 Indicator flashing shows the fault process state of short-circuit short time-delay, if shining with trip light, shows it has tripped. 18 Indicator flashing shows the fault process state of overload long time-delay, if shining with trip light, shows it has tripped. 19 Set state of earthing fault protection, set current is displayed if the light flashs. 0 Set state of earthing fault protection, set time is displayed if the light flashs. 1 Set state of long time-delay protection, set current is displayed if the light flashs. Set state of long time-delay protection, set time is displayed if the light flashs. 3 Set state of short time-delay protection, set current is displayed if the light flashs. Set state of instantaneous protection, set time is displayed if the light flashs. 5 Set state of short time-delay protection, set time is displayed if the light flashs. 7 Model M Load1, load indicator means two current settings are monitored with load. the indicator flashs once means the set value has been saved

12 7.3 Protecting manners for earthing faults a. NA1 three-pole circuit breaker is used in three-phase three-wire system without additional external-connection mutual-inductor. Protective signal of earthing faults only adopts vector summation of three-phase current. Characteristic of protection is definite time-delay protection. Transformer Intelligent controller Current mutualinductor L1 L L3 Model H 1 Reset button: After the breaker trip by fault, the reset button should be pressed in order to make it close again. Otherwise, it won't be realized. Display screen: It shows time, current and voltage., etc. 3 LED indicator: display all states and types. 4 Function key: Press this key to select the function to be operated. 5 key: Check and set the current and time for protection characteristic. Press this key to circularly display each state of breaker. Confirm key: After selecting the function or parameter, press this key to confirm. 7 Return key: After the function is operated, press this key to choose another function or set parameter. 8 Programme interface: Original program of release, compiling of parameter and modification input. 9 Communication light: This light flashing if release at the communication state. Position lock: Indicates the state of release if communication function is operated. Note: Conform to the communication protocol of Modbus or Profibus + DP. Characteristic of intellingent controller b. NA1 four-pole circuit breaker is used in three-phase four-wire system Protective signal of earthing faults adopts vector summation of three-phase current and N-pole current. Characteristic of protection is definite time-delay protection. c. NA1 three-pole circuit breaker is used in three-phase four-wire system Current mutual-inductor connected with neutral-pole N outside and the mutual-inductor inside circuit breaker are used for protection of earthing faults after combining (connected to No. 5 and No. of terminals). Neutral-pole mutual-inductor is provided together with the circuit breaker. Protective signal of earthing faults adopts vector summation of three-phase current and N-pole current. Characteristic of protection is definite time-delay protection. Transformer Transformer Intelligent controller Intelligent controller Current mutualinductor L1 L L3 N Current mutualinductor L1 L L3 N d. External-connection mutual-inductor is used for protection of earthing faults through detecting the current of earthing-cable directly (connected to No. 5 and No. of terminals), i.e. it is earth-current type which is applicable for earthing of transformer, and here the longest distance between mutual-inductor and circuit breaker is no more than m. Characteristic of protection is definite time-delay protection. Transformer Intelligent controller Current mutualinductor L1 L L3 N PE e. External-connection mutual-inductor is used for protection of earthing faults (electric leakage) through detecting current by means of zero-sequence sampling (connected to No. 5 and No. terminals), i.e. it is external-connection mutual-inductor, residual-current type. The sensitivity of this type is very high, and the current of earthing faults is not related with rated current of the circuit breaker.it is suitable for the earthing protection with smaller earthing current. The external-connection mutual-inductor will be prepared by the user. Characteristic of protection is definite time-delay protection Transformer Current mutualinductor L1 L L3 N PE Transformer Current mutualinductor L1 L L3 Intelligent controller Intelligent controller...3.

13 8. Choosing manual Type Rated ultimate breaking capacity (Icu) Rated service breaking capacity ( Ics) Rated short-time withstand current ( Icw) Rated current In (A) Number of poles Rated voltage Ue (V) Rated insulation voltage Ui (V) Rated current of N-pole (A) Break time (ms) NA1-000 Icu=80kA 0V 50kA 90V Ics=50kA 0V ka 90V Icw=50kA 0V ka 90V , 4 0, %In, 0%In 3~3 9. Accessories 9.1 Shunt release (electrifying time is no more than 1s/time, and electrifying frequency is no more than 5 times/ min.) Except manual-operated to directly break the circuit breaker for special products It can be remote-operated to break the circuit breaker Characteristic Rated control power voltage Us (V) AC0,, 17 DC0, 1 Working voltage (V) Power loss Breaking time (0.7~1.1) Us 0VA ms~50ms W Forbid making the power for long time to avoid being damaged. Intelligent controller Standard type (M) Communication type (H) Operation performance Connection pattern Type Electrical life Mechanical life NA Non-maintenance 500 Maintenance 000 Horizontal, Vertical NA1-00 NA1-9. Under-voltage release (power supply must be connected before circuit breaker's connection) Users can select it or not up to your needs.under-voltage release is used to break circuit breaker and protect the equipment (such as motor) when under-voltage or voltage-failure happens. or automatically break the under-voltage circuit of power supply system, improves the reliability and safety (such as dualcircuit). It is classified into instantaneous and time-delay type. Delay-time of under-voltage time-delay release is classified into fourtypesof1s,3s,5sand 7s,andtheaccuracy is %. Within 1/ time-delay range, circuit breaker does not break when power voltage recovers and exceeds 85%Ue. Short-circuit breaking capacity Rated ultimate breaking capacity (Icu) Ratedservicebreakingcapacity ( Ics) Rated short-time withstand current ( Icw) Rated current In (A) Number of poles Rated voltage Ue (V) Rated insulation voltage Ui (V) Rated current of N-pole I N (A) Fixed disconnection time (ms) Intelligent controller Operation performance Connection pattern Standard type (M) Communication type (H) Electrical life Mechanical life Icu=0kA 0V 5kA 90V Ics=80kA 0V 5kA 90V Icw=80kA 0V 50kA 90V Icu=10kA 0V 85kA 90V Ics=0kA 0V 75kA 90V Icw=0kA 0V 75kA 90V , 4 3 3, 4 3 0, %In, 0%In 3~3 0, %In, 0%In 3~3 500 Non-maintenance Non-maintenance 500 Maintenance 000 Maintenance 000 Horizontal, Vertical Horizontal, Vertical Characteristic Rated control power voltage Us (V) AC0,, 17 DC0, 1 Work voltage (V) Reliable breaking voltage (V) Reliable non-breaking voltage (V) Power loss (0.35~0.7) Ue (0.85~1.1) Ue 0.35Ue VA (W) Close the circuit before operating the circuit breaker...5.

14 9.3 Closing electromagnet (electrifying time is no more than 1s/time, and electrifying frequency is no more than 5 times/ min.) After the motor finishes energy storage, closing electromagnet can instantly release spring-force of operation mechanism, and quickly close the circuit breaker. Characteristic Rated control power voltage Us (V) AC0,, 17 DC0, 1 Work voltage (V) Power loss Energy-storage time (0.85~1.1) Us 0VA Less than 70ms W Forbid making the power for long time to avoid being damaged. 9. Off position locking device Off position locking device willmakethebreakingbuttonlockedatthepressedposition, and the breaker can't be closed at this moment. When drawer-type breaker at the breaking position, pull out the lock-rod and lock the breaker by padlock, after that circuit breaker can't reach "test" or "making" position (Padlock is prepared by users), locks and keys will beprovided by us. Separate lock and key is matched with one set of circuit breaker. Two same locks and keys are matched with two circuit breakers. three same locks and two same keys are matched with three circuit breakers. 9.7 Mechanical interlock It can realize the interlock of two horizontal or vertical-installed three-pole or four-pole drawer-type or fixed-type circuit breakers. 9.4 Motor-driven energy-storage mechanism (electrifying time is no more than 5s/time, and electrifying frequency is no more than 3 times/ min.) With automatic re-storing energy function, which is convenient for switching duplicate power supply. Characteristic Rated control power voltage Us (V) AC0, DC0, 1 Work voltage (V) Power loss Storing-energy time (0.85~1.1) Us 85W/1W/0W Less than 5s 19W m(max) Forbid making the power for long time to avoid being damaged. 9.8 Connecting-rod type mechanical interlock Three vertical-installed three-pole or four-pole drawer-type or fixed-type circuit breakers realize the interlockbetweenonebreakerwith another two different-state breakers.. Recommendation for user's connecting bus-bar 9.5 Auxiliary contact Standard model:4-no (normal open) and 4-NC (normal close) Special models:3-no & 5-NC, 5-NO & 3-NC, -NO & -NC, -NO & -NC. Rated value Rated voltage (V) Conventional free-air thermal current Ith (A) Rated control capacity AC AC0 DC0 0VA 0VA W Inm(A) NA1-000 NA1-300 NA1-00 NA1- In(A) /3P00/4P Thickness(mm) Busbar Width(mm) Number Note: the specifications in the table is obtained as the ambient temperature of air circuit breaker is, with open installation; this is in compliance with the specification of copper busbars adopted under the heating conditions regulated in IEC/EN

15 11. Power loss Inm(A) NA1-000 NA1-300 NA1-00 NA1- In(A) /3P 00/4P 00 Power loss (W) Drawer type Fixed type A S curve It As Rated current A 000 In=000A In=A In=150A In=00A In=800A In=A Rated current A In=00A In=300A In=500A In=000A Environmental temperature Environmental temperature 13. Derating usage Environmental Standard temperature Is: prospective symmetrical current(of an a.c. circuit) NA Is ka 000 NA1-300 NA NA Rated current A NA1-000 In=A In=5000A In=00A NA1-300, NA IEC/EN Environmental temperature NA

16 14. Coordination recommendations Capacity of transformer (kva) & parallelly connected number Rated current of transformer In(A) Short circuit current of main circuit (ka) Breaking capacity of air circuit breaker for main circuit (ka) Type of air circuit breaker for main circuit Number and area of the busbar for main circuit (n W T) Breaking capacity of air circuit breaker for branch circuit (ka) Air circuit breaker for branch circuit NA NA mm NA NA NA mm NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ( 80 ) NA NA ( 10 )

17 . Selectivity protection.1 Selective protection between NM8 and NA1 Circuit breaker NA1-000 NA1-300 NA1-00 NA1- Rated current (A) Downstream Default setting ratings of short time-delay 8In (ka) Upstream Setting range (ka) ~ ~ 50.4 Delayed tripping time (s) 0.1, 0., 0.3, , 0., 0.3, 0.4 Returnable time 0.0, 0.14, 0.3, , 0.14, 0.3, 0.35 Frame size Rated Instantaneous rated current current (A) setting ratings (ka) NM8-15 NM8S (motor) 0. 0.(motor) (motor) (motor) 0. 0.(motor) (motor) (motor) (motor) (motor) (motor) ~ 0.3~ 0.3~ 0.3~ 0.3~ 0.3~ 0.3~ 0.3~ 0.3~ ~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.8~ 1 0.9~ 0.9~ 0.8~ ~ 0.88~ 0.88~ ~ ~ 1.035~ 1.035~ ~ 1.35~1 1.38~ 1.38~ 1.38~1 1.5~ 1.75 ~ 1.5~ 1.5~1 1.75~ 1.75~1.07~.07~.07~ ~ ~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.5~ 1.35~ 1.38~ 1.38~ 1.5~ 1.5~ 1.75~ 1.75~.07~.07~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.~ 1.5~ 1.75~.07~ 1.75~.07~ 1.75~.07~ 1.75~.07~ 1.75~.07~ 1.75~.07~ 1.75~.07~ ~.07~ ~ ~.07~ NM8-50 NM8S (motor) (motor).0.4(motor).5 3.0(motor) 1.38~ 1.5~.08~.7~ ~ ~ 1.38~1 1.5~ 1.5~1.08~.08~1 1.7~.7~ ~ 3.45~ ~ 1.38~ 1.5~ 1.5~.08~.08~.7~.7~ ~ 3.45~ ~ 1.5~.08~.7~ ~ ~.7~ ~ ~.7~ ~ 4.1.7~ ~ ~ ~

18 Circuit breaker NA1-000 NA1-300 NA1-00 NA1- Rated current (A) Defaultsettingratings ofshorttime-delay8in(ka) Downstream Upstream Setting range (ka) ~1 1.5~ Delayed tripping time (s) 0.1, 0., 0.3, , 0., 0.3, 0.4 Returnable time 0.0, 0.14, 0.3, , 0.14, 0.3, 0.35 Frame size rated current Rated Instantaneous current(a) settingratings(ka) NM8- NM8S- NM8S- NM8-150 NM8S (motor) (motor) (motor) (motor) 5.0.0(motor).3 7.5(motor).3 7.5(motor) (motor) (motor) 1(motor) 1.5.0(motor) 3.45~ ~ ~ 5.79~ ~ ~ ~ 5.79~ ~ 8.8~ ~ ~ ~1 5.79~ ~1 8.8~ ~ ~ ~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ 3.45~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ ~ ~ 5.79~ ~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~ ~ ~75 8.8~ ~ ~ ~75 1.5~ ~75..9~ 8.8~ ~ 11.59~ ~ 13.8~ 1.5~ 17.5~ 0.7~

19 . Selective protection in NA1 Circuit breaker NA1-000 NA1-300 NA1-00 NA1- Rated current (A) Defaultsettingratings ofshorttime-delay8in(ka) Downstream Upstream Setting range (ka) ~1 1.5~ Delayed tripping time (s) 0.1, 0., 0.3, , 0., 0.3, 0.4 Returnable time 0.0, 0.14, 0.3, , 0.14, 0.3, 0.35 Frame size rated current Rated current(a) Defaultinstantaneous settingratings1in(ka) ~ ~ 9.998~ 9.998~ 9.998~ 9.998~ 9.998~ 9.998~ 9.998~ 9.998~ 9.998~ 9.998~ ~ NA ~ 1.9~.87~ 1.9~ 1.9~ 1.9~.87~.87~.87~ 1.9~.87~ 1.9~.87~ 1.9~.87~ 1.9~.87~ 1.9~.87~ 1.9~75.87~75 1.9~.87~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ NA ~ ~ ~ ~ ~ NA ~ ~ NA ~75 3.~ 79.35~ 75 Note: It can satisfy the selective protection if only the short time-delay setting value of the superior breaker 1.3 times more than the subordinate breaker, when the instantaneous setting value is adjustive

20 Intelligent controller Electrical accessories Special requirements NA1 Air 1. Order form Customer: Tel: Date: Quantity: Model Rated current (In)A Installation mode Number of poles M-type standard type (default configuration) H-type Communicationtype (optional) NA1-000 NA1-300 NA1-00 NA ( only3poles) Drawerout type Fixed type (note: =In 00A fixed type is not available) Three poles Four poles Protection function Others functions Optional function 1. Ir1 protection for overload long time-delay, Ir inverse-time protection + definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, Ir4 4-section protection for single-phrase earthing.. Ir1 protection for overload long time-delay, Ir definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, Ir4 4-section protection for single-phrase earthing. 1. Ir1 protection for overload long time-delay, Ir definite time-delay protection for short-circuit short-delay, Ir3 instantaneous protection for short-circuit, 4-section protection for single-phrase earthing.. Ir1 protection for overload long time-delay, Ir inverse-time protection + definite time-delay protection for short-circuit short time-delay, Ir3 instantaneous protection for short-circuit, 4-section protection for single-phrase earthing. 1. Function of current meter. Function of self-diagnosis 3. Function of setting 4. Function of test 5. Function of display Display of voltage Display of frequency Display of power factor Display of power Function of monitoring load! Not items to be selected necessarily, cost of the increased will be calculated additionally NOTE Explanation: Availableset rangeof protection functionand conventional settingbefore delivery Available set range of Ir1 long-delay current: 0.1 In Conventional setting before delivery: overload long time-delay: 1.0In Available set range of operating time with overload 1.5In:,,...0s Conventional setting before delivery: overload 1.5In, operating s Conventional setting before delivery: short time-delay current 8Ir1 Available set range of current of Ir short-delay; Operating time of short-delay: 0.0.4s! Conventional setting before delivery: operating time of short time-delay: 0.4s 0.0.4s Available set range of Ir3 instantaneous current : 1.0 In~ 50kA/75kA/0kA Conventional setting before delivery: 1In Available set scope of Ir4 earthing protection current: In; Available set scope of operating time of earthing protection: 0.0.4s Conventional setting before ex-factory: 0.5 In;OFF Powersupplyofcontroller Under-voltage release(default configuration) Shuntrelease (default configuration) Motor (default configuration) AC380V, AC0V, DC0V, DC1V AC380V, AC0V, DC0V, customize V Instantaneous Delay s; 1s, 3s, 5s and 7s dialed delay may be provided) Delay of RC under-voltage release: (7)s AC380V, AC0V, DC0V, DC1V AC380V, AC0V, DC0V, DC1V (Optional) (Optional) (Optional) (Optional) (Optional) Interlocking device(costwill becalculated additionally) Connecting-rod interlocking (only provided for drawer-type) Steel cable interlocking :( for both types of drawer-type and fixed-type) Button lock (Optional) Key lock: ( for both types of drawer-type and fixed-type) Door interlock (open or closed position) Door interlock status of ON/OFF Others functions (cost will be calculated additionally) Function of earthing protection with external mutual-inductor (Mutual-inductor is prepared by the user) Connection of main circuit Explanation of vertical connection (prepared with vertical bus-bar): conventional supply is horizontal connection Revolving bus-bar (Drawerout type In 300) (cost of the increased will be burden by the user) Remark: Current of frame size, rated current, and auxiliary control voltage must be indicated when ordering Note: 1) Please mark or fill figure in the relative if no mark, we will provide according to conventional factory settings. ) For ordering products with optional function or special requirements, please contact with us. NA1- NA1-00 NA1-300 NA